Exercise cycle



FIG. 1 is a front perspective view of an exercise cycle showing our new design;

FIG. 2 is a side elevational view thereof, the opposite side being substantially a mirror image, with the exception of the pedal and pedal crank extended upward rather than downward;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a front elevational view thereof. 

The ornamental design for an exercise cycle, as shown and described. 